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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-15
707 - ALTERNATIVE ANALYSIS REVIEW
707 ALTERNATIVE ANALYSIS REVIEW
707-1 Prior to, or in conjunction with, review of the design of any project below, the
applicant shall submit an alternative analysis report demonstrating that the applicant
has evaluated alternative alignments and provided an opportunity for citizen input
into the selection of the proposed alignment.
A. Any Category C project authorized by Section 705-1.1 or Section 705-2.1.A.
B. Any Category B project authorized by Section 704-1.1, Section 704-2.1.B. or
Section 704-2.2 A.
C. Any Category B project authorized by Section 704-1.2 (New Road or Road
Extension) excepting projects where the centerline has been established by right-
of-way dedications obtained as a condition of development approval.
D. Any Category A project identified in Section 703-1.2 that the Director elevates to
a Category B project pursuant to Section 701-5.1 and the Director requires an
Alternative Analysis review.
707-2 Alternative alignment analysis may be conceptual and based on generalized
alignment descriptions or maps. The report shall consist of:
707-2.1 A description of the citizen involvement program;
707-2.2 The criteria or rationale used to select the alignment alternatives;
707-2.3 A brief description of anticipated impacts, where there are significant differences in
impacts between the alignment alternatives, of each alignment alternative as relates
to the following:
A. Transportation System Operations
B. Built and Planned Environment
(1) Existing and Proposed Land Uses
(2) Air Quality
(3) Noise
(4) Hazardous Materials
(5) Historic and Cultural Resources
(6) Recreational Resources
(7) Visual Resources
C. Natural Environment
(1) Wetlands
Date printed 11/27/09
VII-16 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
707 - ALTERNATIVE ANALYSIS REVIEW
(2) Aquatic Resources
(3) Terrestrial Ecology
(4) Hydrology and Hydraulics
(5) Water Quality
The report need not address each of the topics listed above for each alternative if it
is concluded that adverse impacts relating to one topic are so significant that further
consideration of the alternative is not warranted; and
707-2.4 A description of how the anticipated significant impacts were weighed and balanced,
the rationale for selection of the proposed alignment and potential mitigation
measures for the proposed alignment.
707-3 The Review Authority shall determine whether the alternative analysis report
complies with the requirements of this section, but shall not consider whether
alternative alignments might better or more clearly meet the standards of this Article.
Acceptance of the alternative analysis report establishes the alignment upon which
the applicant may make more specific right-of-way determinations for final design.
Date printed 11/27/09
ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-17
708 - SUBMITTAL REQUIREMENTS
708 SUBMITTAL REQUIREMENTS
An applicant for a Category A, B or C project authorized by this Article shall prepare
plans and documentation necessary to demonstrate how the project will comply with
the standards of this Article.
708-1 Site Analysis of Proposed Project
For all Category A, B and C projects a site analysis shall be prepared that includes:
A. A statement that describes the proposed project; and
B. Project plans that show the proposed transportation improvement, including
roadways, bridges, traffic signals, pedestrian facilities, bicycle facilities, transit
facilities, landscaped areas, retaining walls and noise walls, illumination, and
drainage facilities. Plans will typically be preliminary or final plans prepared by a
registered civil engineer.
C. Additionally, the following information shall be shown on project plans or on
accompanying site plans:
(1) Existing and proposed right-of-way;
(2) Proposed areas of access control, if any;
(3) When applicable, the location and proposed treatment or proposed
alteration of the following:
(a) Flood Plains and Floodways;
(b) Drainage Hazard Areas and Drainageways; and
(c) Significant Natural Resource Areas.
(4) Existing conditions within the limits of the proposed project and within fifty
(50) feet of the project limits, including but not limited to:
(a) Location and type of structures, showing proposed removal of
structures if applicable;
(b) Lot area, building setbacks and property dimensions;
(c) Proposed alterations, if any, to existing improvements, including
parking and access; and
(d) Trees six inches or greater in caliper DBH (diameter breast height)
proposed to be removed.
(5) Cross sections of retaining and noise walls; and
(6) Other plans or documentation needed to demonstrate that the project
meets the applicable standards of Sections 709 through 714.
Date printed 11/27/09
VII-18 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
708 - SUBMITTAL REQUIREMENTS
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-19
709 - ALTERATIONS TO FLOOD PLAIN AND DRAINAGE HAZARD AREAS
709 ALTERATIONS TO FLOOD PLAIN AND DRAINAGE HAZARD AREAS
Category B alterations of a flood plain or drainage hazard area shall comply with
following standards:
709-1 The maps entitled “Flood Plain Series, Washington County, Oregon” Revision
5/10/74, 1/03/78, 1/81 and 5/25/83 and 12/12/83 based upon data from the U.S.
Army Corps of Engineers; U.S.G.S.; U.S.B.; S.C.S.; and Washington County,
together with the Flood Insurance Rate Maps, with amendments, and the “Flood
Insurance Study for Washington County,” with amendments, including the Flood
Boundary and Floodway Map, as provided for in the regulations of the Federal
Emergency Management Agency (FEMA) (44 CFR part 59-60) are adopted by
reference as setting forth the flood plain, floodway and drainage hazard areas of
Washington County. But where the maps are not available, the Director may use
any base flood elevation and floodway data available from a federal or state source,
or any other authoritative source, to determine the boundaries of the flood plain,
floodway and drainage hazard areas of Washington County.
709-2 Recognizing that the scale may be such that the true and accurate flood plain or
drainage hazard area cannot be determined from the maps referenced in Section
709-1 alone, an applicant for lands within said areas and two-hundred-fifty (250) feet
of the map boundary of a flood plain or drainage hazard area identified in Section
709-1, shall submit with the Development Permit application:
A. A delineation of the flood plain and the floodway boundaries, established by a
registered engineer or a registered surveyor from the surface elevations
prepared by the County for the flood plain based upon maps referenced in
Section 709-1, and upon any other available authoritative flood plain data
approved by the Director, including but not limited to high water marks,
photographs of past flooding or historical flood plain data; and
B. A delineation of the drainage hazard area and drainageway by a registered
surveyor or a registered engineer from surface elevations prepared by a
registered engineer. Such delineation shall be based on mean sea level datum
and be field located from recognized landmarks.
709-3 A project proposed to encroach into a regulatory floodway adopted and designated
pursuant to FEMA regulations shall demonstrate through hydrologic and hydraulic
analysis, performed in accordance with standard engineering practice by a registered
civil engineer, that the use will not result in any increase in flood levels within the
community during the occurrence of the base (regional) flood discharge.
Notwithstanding this provision, a project that would result in such an increase may be
approved if the County, at the sole expense of the applicant, first obtains FEMA
approval in accordance with 44 CFR Ch. 1, Part 65 (October 1, 1990 edition, or its
successor). No increase to the flood plain elevation shall be permitted unless the
area in which the rise will occur contains no structures and the owner of such
property signs a written acceptance of any increase in the flood plain elevation.
These properties are not required to be part of the application for the proposed
development.
709-4 A project proposed on a flood plain site where the use does not encroach into an
adopted FEMA regulatory floodway shall demonstrate through hydrologic and
Date printed 11/27/09
VII-20 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
709 - ALTERATIONS TO FLOOD PLAIN AND DRAINAGE HAZARD AREAS
hydraulic analysis, performed in accordance with standard engineering practice by a
registered civil engineer, that the use will not increase the flood plain elevation more
than one (1) foot at any point in the community. Notwithstanding this provision, an
increase in excess of one (1) foot may be approved if the County, at the sole
expense of the applicant, first obtains FEMA approval in accordance with 44 CFR
Ch. 1, Part 65 (October 1, 1990 edition, or its successor). No increase to the flood
plain elevation shall be permitted unless the area in which the rise will occur contains
no structures and the owner of such property signs a written acceptance of any
increase in the flood plain elevation.
709-5 A project proposed on a drainage hazard area site shall demonstrate through
hydrologic and hydraulic analysis, performed in accordance with standard
engineering practice by a registered civil engineer, that the use will not result in any
increase to the drainage hazard area elevation at any point in the community.
Notwithstanding this provision, an increase may be approved if the area in which the
rise will occur contains no structures and the owner of such property signs a written
acceptance of any increase in the drainage hazard area elevation.
709-6 To minimize the risk that an encroachment will catch substantial debris or otherwise
significantly impede floodwater flows, encroachment into a floodway shall include
design features such as, but not limited to, openings sized to achieve this purpose,
secured breakaway bridges, diverters or spacing of supports.
709-7 A project shall not increase the existing velocity of flood flows so as to exceed the
erosive velocity limits of soils in the flood area. Energy dissipation devices or other
measures to control the mean velocity so as not to cause erosion of the flood area
may be used to meet this standard.
709-8 All cut and fill shall be done in accordance with best management practices.
709-9 All cut and fill shall be structurally sound and designed to minimize erosion. All fill
below the flood surface elevation shall be accompanied by an equal or greater
amount of cut or storage within the boundary of the development site unless:
A. The proposed cut and fill is found to be in compliance with an adopted Drainage
Master Plan; or
B. Off-site excavation will be utilized to balance a fill, provided:
(1) The off-site excavation area will be part of the application for the
development proposing to place the fill;
(2) The off-site excavation area will be located in the same drainage basin as
the proposed fill area;
(3) The off-site excavation area will be located within points of constriction on
the drainage system, if any, and as close to the fill site as practicable. The
applicant's registered civil engineer may be required to conduct a storage
routing analysis to determine the location of the excavation area;
(4) The off-site excavation area will be constructed as part of the development
placing the fill;
Date printed 11/27/09
ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-21
709 - ALTERATIONS TO FLOOD PLAIN AND DRAINAGE HAZARD AREAS
(5) Any use or future development of the excavated area shall comply with the
standards of Section 710 if the area is designated as a Significant Natural
Resource; and
(6) Ownership of the excavated area shall be by one of the following
mechanisms:
(a) Dedication of the area to an appropriate public agency when a public
agency is willing to accept the dedication;
(b) Ownership of the area by the applicant of the proposed development;
(c) Dedication of the development rights of the area to an appropriate
public agency with ownership remaining with the property owner.
Maintenance of the area shall be the responsibility of the applicant or
property owner; and
(d) Deed or easement-restricted private ownership that prevents any
use or future development of the area as specified by Section
421-7.6 B. (5). Maintenance of the area shall be the
responsibility of the applicant or property owner. A contract for
conditions shall be required as specified by Section 207-5.3. The
contract for conditions shall be recorded in the Washington
County Deed Records.
709-10 Drainage systems shall be designed and constructed according to the adopted
Drainage Master Plan for the area, if one exists.
709-11 There shall be no dumping of fill in a flood area or drainage hazard area without a
flood plain or drainage hazard area alteration permit.
Date printed 11/27/09
VII-22 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
709 - ALTERATIONS TO FLOOD PLAIN AND DRAINAGE HAZARD AREAS
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-23
710 - ALTERATIONS TO SIGNIFICANT NATURAL RESOURCES
710 ALTERATIONS TO SIGNIFICANT NATURAL RESOURCES
710-1 Alteration of an area designated as a Significant Natural Resource by the
Rural/Natural Resource Plan or the applicable community plan shall be allowed for
the following:
A. Crossings for public transportation facilities, including streets, roads, bridges, and
culverts, and bicycle, pedestrian, and transit facilities.
B. Construction or reconstruction of public transportation facilities, including streets,
roads, bridges, and culverts, and bicycle, pedestrian, and transit facilities.
710-2 Category B alterations of an area designated as a Significant Natural Resource shall
comply with the following standards:
710-2.1 The design elements of the applicable Community Plan; or the applicable
implementing strategies of the Rural/Natural Resource Plan Element, Policy 10,
Implementing Strategy E which states:
“Implement the recommendations of the Oregon Department of Fish and
Wildlife Habitat Protection Plan for Washington County and to mitigate the
effects of development in the Big Game Range within the EFU, EFC and AF-
20 land use designations.”
710-2.2 Any proposed project in a Significant Natural Area, as identified by the applicable
Community Plan or the Rural/Natural Resource Area Plan Element, shall reduce its
impact, to the maximum extent feasible, on the unique or fragile character or features
of the Significant Natural Area.
710-2.3 Any proposed project in a Significant Natural Resource Area shall not seriously
interfere with the preservation of fish and wildlife areas and habitat identified in the
Washington County Comprehensive Plan, or shall identify how the interference can
be mitigated.
Date printed 11/27/09
VII-24 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
710 - ALTERATIONS TO SIGNIFICANT NATURAL RESOURCES
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-25
711 - HISTORICAL AND CULTURAL RESOURCES
711 HISTORICAL AND CULTURAL RESOURCES
711-1 Alteration of a property or structure in an area designated as a Historic or Cultural
Resource by the Rural/Natural Resource Plan or the applicable community plan shall
be allowed for the following:
A. Crossings for public transportation facilities, including streets, roads, bridges, and
culverts, and bicycle, pedestrian, and transit facilities.
B. Construction or reconstruction of streets, roads, bridges, and culverts, and
bicycle, pedestrian, and transit facilities.
711-2 Alterations permitted under this section shall be reviewed in a separate land use
proceeding in accordance with Section 373.
Date printed 11/27/09
VII-26 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
711 - HISTORICAL AND CULTURAL RESOURCES
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-27
712 - PEDESTRIAN, BICYCLE AND TRANSIT FACILITIES
712 PEDESTRIAN, BICYCLE AND TRANSIT FACILITIES
712-1 Inside an urban growth boundary, pedestrian facilities shall be provided along the
sides of roads, excluding freeways, that are constructed as ultimate improvements,
except when the standards of Section 712-3 are met.
712-2 Inside an urban growth boundary, pedestrian facilities shall be provided along the
sides of roads, excluding freeways, that are constructed as interim improvements,
when sufficient right-of-way is available except when the standards of 712-3 are met.
Otherwise this requirement may be satisfied by improvements required by Section
712-5.
712-3 An exemption to the requirement to construct pedestrian facilities may be granted by
the Review Authority upon findings that they are unnecessary at the time of project
construction due to the following:
712-3.1 Pedestrian facilities are assured by others to be provided within three (3) years of
project completion; or
712-3.2 Abutting land is undeveloped; and
712-3.3 There is a lack of pedestrian oriented activity and the project does not abut a school,
park, transit stop, recreation center or commercial center.
712-4 For ultimate capital improvements on facilities designated to accommodate
bikeways, as identified on the Planned Bicycle System Map in the Transportation
Plan, bikeways shall be constructed. Bikeways include striped and stenciled lanes,
5 to 6 feet in width, paved shoulders at least 4 feet in width and 14 foot wide outside
travel lanes in areas where constraints limit roadway width; these 14 foot wide
shared, outside travel lanes shall transition to either paved shoulders or bikeways
when the constraint ends.
712-5 For those road construction or reconstruction projects located within Pedestrian
Districts or Streetscape Improvement Areas identified in the Pedestrian Element of
the 2020 Transportation Plan, pedestrian enhancements such as those amenities
described in the county‟s Pedestrian Enhancements Design Guideline Booklet shall
be considered as part of the project development process.
712-6 For interim capital improvements on roadways identified for bikeways on the Planned
Bicycle System Map in the Transportation Plan, a minimum of a five (5) foot paved
shoulder for each outside travel lane shall be provided.
712-7 Provision of transit improvements, including bus pullouts, bus shelters and benches,
shall be coordinated with the local transit authority.
Date printed 11/27/09
VII-28 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
712 - PEDESTRIAN, BICYCLE AND TRANSIT FACILITIES
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-29
713 - FARM AND FOREST IMPACTS
713 FARM AND FOREST IMPACTS
713-1 Category C projects located within the AF-20, EFU, and EFC Districts shall not:
A. Force a significant change in accepted farm or forest practices on surrounding
lands located in the AF-20, EFU and EFC Districts; nor
B. Significantly increase the cost of accepted farm or forest practices on
surrounding lands located in the AF-20, EFU and EFC Districts.
An applicant may demonstrate that these standards for approval will be satisfied
through the imposition of conditions. Any conditions so imposed shall be clear and
objective.
713-2 Projects identified in Section 705-2.1 A. – E. within the AF-20, EFU, and EFC
Districts shall:
A. Identify reasonable build design alternatives, such as alternative alignments, that
are safe and can be constructed at a reasonable cost, not considering raw land
costs, with available technology. Design and operations alternatives need not be
considered if they are inconsistent with applicable standards or not approved by
a registered professional engineer.
B. Assess the effects of the identified alternatives on farm and forest practices
considering:
(1) The impacts to farm and forest lands, structures and facilities;
(2) The effects of traffic on the movement of farm and forest vehicles and
equipment; and
(3) The effects of access to parcels created on farm and forestlands.
C. Select from the identified alternatives, the one, or combination of identified
alternatives that has the least impact on lands in the immediate vicinity devoted
to farm or forest use, unless that alternative has a significant adverse impact on
resources regulated by CDC Sections 373 (Historic and Cultural Resource
Overlay District), 379 (Mineral and Aggregate Overlay District), 709 (Alterations
to Flood Plain and Drainage Hazard Areas), or 710 (Alternations to Significant
Natural Resources), in which case the review authority may choose a different
alternative that balances impacts to lands devoted to farm or forest use with
impacts to resources regulated by CDC Sections 373, 379, 709, or 710.
Date printed 11/27/09
VII-30 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
713 - FARM AND FOREST IMPACTS
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ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES VII-31
714 - ADDITIONAL STANDARDS FOR CATEGORY A. B AND C PROJECTS
714 ADDITIONAL STANDARDS FOR CATEGORY A, B AND C PROJECTS
714-1 Interim improvements shall be designed to not impede future improvement of the
facility to ultimate standards.
714-2 For a project that has received preliminary or final approval, the length of the project
may be reduced through a Type I procedure when sufficient funds have not been
appropriated to construct the entire project.
714-3 On those roadways that are designated as „Boulevard Intersections‟, „Boulevards‟ or
„Streets‟ on the Regional Street Design Overlay Map in the Transportation Plan,
consider the street design characteristics set forth in the Regional Transportation
Plan and Metro‟s publication entitled „Creating Livable Streets – Street Design
Guidelines for 2040‟ during development review and project development, when
construction or reconstruction is proposed.
714-4 For those roadway construction or reconstruction projects located within Pedestrian
Districts or Streetscape Improvement Areas identified in the Pedestrian Element of
the 2020 Transportation Plan, pedestrian enhancements such as those described in
the county‟s Pedestrian Enhancements Design Guideline Booklet shall be
considered as part of the project development process.
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VII-32 ARTICLE VII: PUBLIC TRANSPORTATION FACILITIES
714 - ADDITIONAL STANDARDS FOR CATEGORY A, B AND C PROJECTS
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